Should the Word Earth Be Capitalized?

We usually lowercase sun, moon, and earth, but, following The Chicago Manual of Style, when the does not precede the name of the planet, when earth is not part of an idiomatic expression, or when other planets are mentioned, we capitalize earth: The earth revolves around the sun. The astronauts landed on the moon.

Should Sun Moon and Earth be capitalized?

Do not capitalize the words sun and moon. ... Do not, however, capitalize earth, moon, sun, except when those names appear in a context in which other (capitalized) celestial bodies are mentioned. "I like it here on earth," but "It is further from Earth to Mars than it is from Mercury to the Sun.

What is the difference between Earth and the earth?

When used as a common noun, it's frequently lowercase, and used with the article ("the"). When it's a proper noun -- like a person's name, "Bob", or even "God" vs "the god" -- then it's capitalized ("Earth"), and often without the article ("the").